define acceleration and give its SI unit when is acceleration of a body negative give two example of situation in which acceleration of the body is negative
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Answer:
the rate of change of velocity of a moving body with time is called acceleration. si unit is m/s^2.
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Answer:
acceleration of a body is defined as the rate of change of its velocity with time
Explanation:
SI Unit= m/sec
yes a acceleration can be negative
for example - a bus decreases it's speed from 80km/h to 60km/h in 5 sec
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